14111cx1ans

14111cx1ans - (b False(c True(d True(e False 12 x = the...

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Math 141 - Fall 2011 Exam 1 Answers Form A 1. A 2. D 3. D 4. B 5. D 6. A 7. C 8. B 9. A 10. A 11. (a) True (b) False (c) False (d) True (e) False 12. x = the number of small houses cleaned in August, y = the number of medium houses cleaned in August, z = the number of large houses cleaned in August 80 x + 110 y + 120 z = 13800 2 x + 3 y + 4 z = 410 z = 3 y 13. 1 0 11 - 17 0 1 2 - 3 0 0 - 1 - 1 14. The system has infinitely many solutions. The general solution is ( 19 8 - 3 4 t, 15 8 + 5 4 t,t ) where t is any real number. Form B 1. C 2. D 3. A 4. B 5. A 6. D 7. C 8. D 9. C 10. A 11. (a) False
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Unformatted text preview: (b) False (c) True (d) True (e) False 12. x = the number of small houses cleaned in August, y = the number of medium houses cleaned in August, z = the number of large houses cleaned in August 70 x + 90 y + 100 z = 15200 x + 2 y + 3 z = 380 z = 3 y 13. 1 0 11-19 0 1-2 4 0 0 3 3 14. The system has infinitely many solutions. The general solution is ( 19 8-3 4 t, 15 8 + 5 4 t,t ) where t is any real number....
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This note was uploaded on 03/04/2012 for the course MATH 141 taught by Professor Jillzarestky during the Fall '08 term at Texas A&M.

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